The Human Side of Microservices John Billings @jnb42 - - PowerPoint PPT Presentation

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the human side of microservices john billings jnb42
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The Human Side of Microservices John Billings @jnb42 - - PowerPoint PPT Presentation

Aug 23, 2022 336 likes •868 views

The Human Side of Microservices John Billings @jnb42 billings@yelp.com Introduction About me PhD in compiling and verifying routing protocols Joined Yelp in February 2011 Initially: Joined <10 person search team 70 - 80

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The Human Side of Microservices John Billings @jnb42 billings@yelp.com

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Introduction

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About me

  • PhD in compiling and verifying routing

protocols

  • Joined Yelp in February 2011
  • Initially:
  • Joined <10 person search team
  • 70 - 80 engineers
  • Now 300+ engineers
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Yelp’s Mission

Connecting people with great local businesses.

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Yelp Stats

As of Q1 2016

90M 32 70% 102M

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3 million 1 million

LoC in monolith

2005 2016 2011

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Number of microservices

117 2012 2016

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LoC in microservices

891k 2012 2016

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Microservice adoption

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https://www.flickr.com/photos/24736216@N07/4433492189

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http://www.soc.iastate.edu/extension/pub/comm/SP18.pdf

“The Diffusion Process”

George M. Beal and Joe M. Bohlen, 1957

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Technology adoption curve for a population

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The chasm

Early adopters Early majority

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Innovators

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Innovators

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The Geocoder Service

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Early adopters

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The majority

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Education

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https://en.wikipedia.org/wiki/Fallacies_of_distributed_computing

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https://github.com/Yelp/service- principles

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  • Service type (PaaSTA vs legacy SOA)
  • Technology type (Python / Java / daemon)
  • Caching
  • Downtime scenarios
  • Databases
  • External services
  • Hardware requirements
  • Load balancing
  • Performance and uptime
  • Monitoring
  • Security
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Summits and unconferences

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Talks

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Deputy programs

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Office hours

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Postmortems

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Standards

Boo! Boring! Tell me something interesting! Zzzz………….!

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Interfaces

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Perform a real query

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Tracing

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Metrics

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Datastores

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Timeouts and retries

https://en.wikipedia.org/wiki/Abort,_Retry,_Fail%3F#/media/File:Abort_Retry_Fail.PNG

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Ownership

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Organizational

  • bjectives
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Lots of (potentially) conflicting objectives:

  • Performance
  • Reliability
  • Cost
  • Security
  • Iteration speed
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“What gets measured gets improved”

Peter Drucker

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Conclusions

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Microservices have forced us to build a more robust, decentralized organization

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This change has taken a long time

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I believe (but cannot prove) that we are shipping code as quickly as ever

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Any questions?